Re: The usage of -dtrace-scheme-coverage in Lilypond

[Andy Wingo]

Hello zhangxy,

On Fri 11 Mar 2011 14:31, Han-Wen Nienhuys <address@hidden> writes:

> On Fri, Mar 11, 2011 at 12:21 AM, zhangxy <address@hidden> wrote:
>> Now I want to analyze the test coverage of Lilypond.
>
> Apparently there is a new mechanism for finding coverage.  See
> https://www.gnu.org/software/guile/manual/html_node/Code-Coverage.html
> - perhaps you can work out a way with the guile folks to resurrect
> lilypond's test coverage code.

The code in Guile's `test-suite/guile-test' looks like this:

    (let-values (((coverage-data _)
                  (with-code-coverage (the-vm) run-tests)))
      (let ((out (open-output-file "guile.info")))
        (coverage-data->lcov coverage-data out)
        (close out)))

where `run-tests' is a thunk that runs the tests.

Andy
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